Download App

PART - 1 CH - 5 Thermodynamics — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryPART - 1 CH - 5 Thermodynamics5 Marks
Question
Explain the second and third law of thermodynamics.
✓

Answer

SELF

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "5 Marks Questions" from PART - 1 CH - 5 Thermodynamics→PART - 1 CH - 5 Thermodynamics — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

The solubility of silver chloride (AgCl) in water at 25°C is 1.06 × 10-5mol L-1. Calculate the solubility product of AgCl at this temperature.
→
The solubility product of Al (OH)3 is 2.7 × 10–11. Calculate its solubility in gL–1 and also find out pH of this solution. (Atomic mass of Al = 27 u).
→
Explain the following: (i) Markownikov's Law (ii) Peroxide effect
→
1. a. Define the following terms:
i. Enantiomers
ii. Racemic mixture
b. Why is chlorobenzene resistant to nucleophilic substitution reaction?
2. What is the general molecular formula of saturated monohydric alcohols?
→
How do you count for the following observations?
Though alkaline potassium permanganate and acidic potassium permanganate both are used as oxidants, yet in the manufacture of benzoic acid from toluene we use alcoholic potassium permanganate as an oxidant. Why? Write a balanced redox equation for the reaction.
→
Prove that solubility of salts of weak acids increases by decreasing the pH.
→
Derive the equation required to determine pH of acidic buffer.
→
Following results are observed when sodium metal is irradiated with different wavelengths. Calculate (a) threshold wavelength and (b) Planck's constant.
$\lambda( nm )$500450400
$v \times 10^{-8}\left(cm s ^{-1}\right)$2.554.355.35
→
One of the reaction that takes place in producing steel from iron ore is the reduction of iron(II) oxide by carbon monoxide to give iron metal and $CO _2$.
$FeO ( s )+ CO ( g ) \rightleftharpoons Fe ( s )+ CO _2(g) ; \quad K _{ p }=$0.265 atm at 1050 K
What are the equilibrium partial pressures of CO and CO2 at 1050 K if the initial partial pressures are $: p_{ co }=1.4 atm$ and $p_{ co _2}=0.80 atm$ ?
→
  1. Why is +2 oxidation state of Mn (25) quite stable, while the same is not true for iron (26)?
  2. What is meant by dual nature of electrons? Calculate the energy and wavelength of the photon emitted by hydrogen atom when electron makes a transition from n = 2 to n = 1. Given that the ionisation potential is 13.6 eV. (1eV = 1.6 × 10-19J).
→